GB/T 1047-2019
ActivePipework components—Definition and selection of nominal size
管道元件 公称尺寸的定义和选用
Application Summary AI generated
This standard defines nominal size (DN) for pipework components, providing a standardized numerical designation for the bore diameter of pipes, flanges, fittings, and valves. It is applied in the design, specification, and procurement of fluid handling systems across industries such as petrochemical, water supply, and HVAC to ensure interchangeability and compatibility between components from different manufacturers. The standard is used in engineering drawings, technical documentation, and product labeling to specify the size of pipework elements.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.